Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Health
Ideal Weight Calculator
Estimate your "ideal" reference body weight from your height, biological sex, and body frame size using the Devine formula — originally created in 1974 for pharmacological dose calculation and still used clinically today. Useful as a rough planning anchor, but not a personal weight goal: it ignores muscle mass, age, and individual physiology.
Fill in the required fields to see your result.
Fitness
Macro Calculator
Split your daily calorie target into grams of protein, carbohydrates, and fat tuned to your goal — fat loss, muscle gain, maintenance, or keto. The output is the macro target sports-nutrition coaches and bodybuilders use to plan meals and track adherence with apps like MyFitnessPal or Cronometer.
Fill in the required fields to see your result.
Key differences
| Ideal Weight Calculator | Macro Calculator | |
|---|---|---|
| Category | Health | Fitness |
| Inputs required | 3 | 3 |
| Result | Ideal Weight (kg) | Daily Macro Targets |
| What it does | Estimate your "ideal" reference body weight from your height, biological sex, and body frame size using the Devine formula — originally created in 1974 for pharmacological dose calculation and still used clinically today. Useful as a rough planning anchor, but not a personal weight goal: it ignores muscle mass, age, and individual physiology. | Split your daily calorie target into grams of protein, carbohydrates, and fat tuned to your goal — fat loss, muscle gain, maintenance, or keto. The output is the macro target sports-nutrition coaches and bodybuilders use to plan meals and track adherence with apps like MyFitnessPal or Cronometer. |